Vodafone India — Unsubscribe

Address:	Mumbai City, Maharashtra, 301001
Website:	www.vodafone.in

I never subscribed the v videa video service but it gets subscribed on 28th april 2016. when i tries to uninstall it by following the instruction in the message and dialing and also tried sending "STOP" to 155223.it says that number is invalid and message is not sent .I am very much dissatisfied with this issue..i have been your loyal customer from a long time but this is forcing me to port number on some other network.
Thank You